M. Omella - Academia.edu (original) (raw)
Papers by M. Omella
Proceedings of 2007 9th International Conference on Transparent Optical Networks, ICTON 2007, 2007
... Josep Prat (1), Mireia Omella (1), Pierluigi Poggiolini (2), Gabriela Bosco (2), Robert Kille... more ... Josep Prat (1), Mireia Omella (1), Pierluigi Poggiolini (2), Gabriela Bosco (2), Robert Killey (3) Antonio Teixeira (4), Ruben Sousa ... at the receiver side, thus holding promise to extend the reach of present RoF systems and to spur itsapplications into ... [5] Josep Prat, Maria C. Santos ...
Optical Fiber Technology, 2014
A multi-layer next generation PON prototype has been built and tested, to show the feasibility of... more A multi-layer next generation PON prototype has been built and tested, to show the feasibility of extended hybrid DWDM/TDM-XGPON FTTH networks with resilient optically-integrated ring-trees architecture, supporting broadband multimedia services. It constitutes a transparent common platform for the coexistence of multiple operators sharing the optical infrastructure of the central metro ring, passively combining the access and the metropolitan network sections. It features 32 wavelength connections at 10 Gbps, up to 1000 users distributed in 16 independent resilient sub-PONs over 100 km. This paper summarizes the network operation, demonstration and field trial results.
International Conference on Transparent Optical Networks, 2008
In this paper, an approach for wavelength generation in the C-band at the remote node of a passiv... more In this paper, an approach for wavelength generation in the C-band at the remote node of a passive optical network is experimentally demonstrated. The upstream wavelength is established in a loop configuration by a remotely pumped Erbium-doped fiber and a wavelength selective feedback. By combining this upstream channel modulated at 1 Gb/s by a cheap and simple device at the
… , 2009. ECOC'09. …, 2009
... B. Schrenk, F. Bonada, M. Omella, JA Lazaro and J. Prat Universitat Politécnica de Catalunya,... more ... B. Schrenk, F. Bonada, M. Omella, JA Lazaro and J. Prat Universitat Politécnica de Catalunya, Jordi Girona 1, 08034 Barcelona, Spain, bernhard.schrenk@tsc.upc.edu ... Due to missing strong pumps, the RN was pumped locally with two laser diodes of each 20 dBm at 1480 nm. ...
IEEE Photonics Technology Letters, 2000
Reduced dispersion-induced harmonics levels are reported for analogue radio-over-fiber systems by... more Reduced dispersion-induced harmonics levels are reported for analogue radio-over-fiber systems by using a linearized receiver incorporating a memoryless electronic circuit with square root (SQRT)-like transfer function, and performing amplitude modulation (AM) at the transmitter. A practical implementation demonstrates the effectiveness of the AM-SQRT approach in linearizing the optical transmission system with respect to the conventional intensity modulation and direct detection system. Index Terms-Adaptive equalization, dispersion equalization, optical fiber communications, radio-over-fiber (RoF).
Optical Fiber Communication …, 2007
With the purpose of reducing the crosstalk caused by Rayleigh Backscattering in bidirectional cen... more With the purpose of reducing the crosstalk caused by Rayleigh Backscattering in bidirectional centralized light systems, we propose a reflective ONU design that performs wavelength shifting by means of combined PM and SSB modulation.
… , 2008. ECOC 2008. …, 2008
... To overcome its bandwidth limitation, some techniques can be applied; we propose here to appl... more ... To overcome its bandwidth limitation, some techniques can be applied; we propose here to apply simple electronic techniques that do not require optical elements and maintain the colourlessness: passive pre-equalization and duobinary encoding techniques, with the aim of ...
… , 2006. ECOC 2006. …, 2006
Introduction Flexibility, scalability and resiliency are important features for next generation A... more Introduction Flexibility, scalability and resiliency are important features for next generation Access Networks (AN), while maintaining simplicity to make the network economically feasible [1]. Several ring access topologies based on wavelength division multiplexing (WDM) and using ...
... Josep Prat (1), Mireia Omella (1), Pierluigi Poggiolini (2), Gabriela Bosco (2), Robert Kille... more ... Josep Prat (1), Mireia Omella (1), Pierluigi Poggiolini (2), Gabriela Bosco (2), Robert Killey (3) Antonio Teixeira (4), Ruben Sousa ... at the receiver side, thus holding promise to extend the reach of present RoF systems and to spur itsapplications into ... [5] Josep Prat, Maria C. Santos ...
… , 2009. ECOC'09. …, Sep 20, 2009
Introduction The RSOA is a key element in Passive Optical Networks that has been widely adopted a... more Introduction The RSOA is a key element in Passive Optical Networks that has been widely adopted as a low cost integrated element able to perform optical broadband amplification and colourless re-modulation. However, the electro-optical bandwidth and the high chirp values of the commercially available RSOAs limit the upstream transmission bit rate. Upstream transmission at 10 Gb/s up to 85 km, was demonstrated using an RSOA with only 1.5 GHz electrical bandwidth by combining: a) electrical filtering at the input of the RSOA, b) offset optical filtering and c) ...
Proceedings of 2007 9th International Conference on Transparent Optical Networks, ICTON 2007, 2007
... Josep Prat (1), Mireia Omella (1), Pierluigi Poggiolini (2), Gabriela Bosco (2), Robert Kille... more ... Josep Prat (1), Mireia Omella (1), Pierluigi Poggiolini (2), Gabriela Bosco (2), Robert Killey (3) Antonio Teixeira (4), Ruben Sousa ... at the receiver side, thus holding promise to extend the reach of present RoF systems and to spur itsapplications into ... [5] Josep Prat, Maria C. Santos ...
Optical Fiber Technology, 2014
A multi-layer next generation PON prototype has been built and tested, to show the feasibility of... more A multi-layer next generation PON prototype has been built and tested, to show the feasibility of extended hybrid DWDM/TDM-XGPON FTTH networks with resilient optically-integrated ring-trees architecture, supporting broadband multimedia services. It constitutes a transparent common platform for the coexistence of multiple operators sharing the optical infrastructure of the central metro ring, passively combining the access and the metropolitan network sections. It features 32 wavelength connections at 10 Gbps, up to 1000 users distributed in 16 independent resilient sub-PONs over 100 km. This paper summarizes the network operation, demonstration and field trial results.
International Conference on Transparent Optical Networks, 2008
In this paper, an approach for wavelength generation in the C-band at the remote node of a passiv... more In this paper, an approach for wavelength generation in the C-band at the remote node of a passive optical network is experimentally demonstrated. The upstream wavelength is established in a loop configuration by a remotely pumped Erbium-doped fiber and a wavelength selective feedback. By combining this upstream channel modulated at 1 Gb/s by a cheap and simple device at the
… , 2009. ECOC'09. …, 2009
... B. Schrenk, F. Bonada, M. Omella, JA Lazaro and J. Prat Universitat Politécnica de Catalunya,... more ... B. Schrenk, F. Bonada, M. Omella, JA Lazaro and J. Prat Universitat Politécnica de Catalunya, Jordi Girona 1, 08034 Barcelona, Spain, bernhard.schrenk@tsc.upc.edu ... Due to missing strong pumps, the RN was pumped locally with two laser diodes of each 20 dBm at 1480 nm. ...
IEEE Photonics Technology Letters, 2000
Reduced dispersion-induced harmonics levels are reported for analogue radio-over-fiber systems by... more Reduced dispersion-induced harmonics levels are reported for analogue radio-over-fiber systems by using a linearized receiver incorporating a memoryless electronic circuit with square root (SQRT)-like transfer function, and performing amplitude modulation (AM) at the transmitter. A practical implementation demonstrates the effectiveness of the AM-SQRT approach in linearizing the optical transmission system with respect to the conventional intensity modulation and direct detection system. Index Terms-Adaptive equalization, dispersion equalization, optical fiber communications, radio-over-fiber (RoF).
Optical Fiber Communication …, 2007
With the purpose of reducing the crosstalk caused by Rayleigh Backscattering in bidirectional cen... more With the purpose of reducing the crosstalk caused by Rayleigh Backscattering in bidirectional centralized light systems, we propose a reflective ONU design that performs wavelength shifting by means of combined PM and SSB modulation.
… , 2008. ECOC 2008. …, 2008
... To overcome its bandwidth limitation, some techniques can be applied; we propose here to appl... more ... To overcome its bandwidth limitation, some techniques can be applied; we propose here to apply simple electronic techniques that do not require optical elements and maintain the colourlessness: passive pre-equalization and duobinary encoding techniques, with the aim of ...
… , 2006. ECOC 2006. …, 2006
Introduction Flexibility, scalability and resiliency are important features for next generation A... more Introduction Flexibility, scalability and resiliency are important features for next generation Access Networks (AN), while maintaining simplicity to make the network economically feasible [1]. Several ring access topologies based on wavelength division multiplexing (WDM) and using ...
... Josep Prat (1), Mireia Omella (1), Pierluigi Poggiolini (2), Gabriela Bosco (2), Robert Kille... more ... Josep Prat (1), Mireia Omella (1), Pierluigi Poggiolini (2), Gabriela Bosco (2), Robert Killey (3) Antonio Teixeira (4), Ruben Sousa ... at the receiver side, thus holding promise to extend the reach of present RoF systems and to spur itsapplications into ... [5] Josep Prat, Maria C. Santos ...
… , 2009. ECOC'09. …, Sep 20, 2009
Introduction The RSOA is a key element in Passive Optical Networks that has been widely adopted a... more Introduction The RSOA is a key element in Passive Optical Networks that has been widely adopted as a low cost integrated element able to perform optical broadband amplification and colourless re-modulation. However, the electro-optical bandwidth and the high chirp values of the commercially available RSOAs limit the upstream transmission bit rate. Upstream transmission at 10 Gb/s up to 85 km, was demonstrated using an RSOA with only 1.5 GHz electrical bandwidth by combining: a) electrical filtering at the input of the RSOA, b) offset optical filtering and c) ...